Liebherr pr732b series 2 litronic crawler dozer service repair manual

Page 26

This results in a coolant mixture ration of approx. 48.5 % water, 48.5 % anticorrosion / antifreeze fluid and 3% DCA4. In addition, use a new coolant filter, according to the filling quantity. The correct Id. No. of the filter can be found in the Parts Manual or the Operation and Maintenance manual of the machine. Overview chart DCA4 and filter requirements (as of 2001) Coolant system contents Required quantity of liquid DCA 4 Liter

Container approx.0.5 liter

appr. liter

DCA 4 - water filter Id. No.

24-39

3

oder

1,5

7367 045

40-59

4

oder

2,0

7381 493

60-79

5

oder

2,5

7367 052

80-115 8 oder 4 7367 052 Container liquid DCA4 at approx. 0.5 l -Id. No. 7363 898 Liebherr coolant (ready to use, 20 liter, above mixing ratio) - Id. No. 10 005 347 1.3.2 Coolant - special filling - with anti corrosion fluids, without antifreeze fluids In exceptional cases and if ambient temperatures are constantly above the freezing point, for example in tropical regional, where no anticorrosion / antifreeze fluids is proofed available, fresh water and water-soluble anticorrosion fluids (Inhibitors) may be used as coolant. Do not use coolant refiners (anticorrosion oils) with emulsifying capacity. If necessary, flush the cooling system before refilling. The fresh water quality must meet use with DCA4 - see chart ”Approved fresh water quality”. The coolant must be changed once a year. Use of DCA4 To provide sufficient protection against corrosion, approximately twice the amount of DCA4 must be used as compared to the above mixing ration, when using anticorrosion / antifreeze fluids and DCA4 - see above "overview chart and filter requirements". The DCA4 concentration must be between 0.6 and 1.06 units. It must be checked during maintenance work or when the coolant filter is changed, and corrected, as necessary. This results in a mixing ratio of max. 94 % fresh water and min. 6 % DCA4 additive Use of products from Caltex / Chevron Texaco / Havoline / Total To provide sufficient protection against corrosion with these products, a mixture of 92,5 vol.% coolant and 7,5 vol.% anti corrosion fluid must be kept. The mixture ratio must be checked during maintenance work and corrected, as necessary. The concentration of the anti corrosion fluid must not fall below 5 vol.% nor exceed 10 vol.%.

Presently approved anti corrosion fluids (as of December 2003): Brand name

Manufacturer

DCA4 Diesel Coolant Additives Caltex CL Corrosion Inhibitor Concentrate Chevron Texaco Heavy Duty Extended Life Corrosion Inhibitor Nitrite Free Havoline Extended Life Corrosion Inhibitor (XLI) Total WT Supra

Fleetguard Caltex Chevron Texaco ARTECO Total


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